Certified Rhythm Analysis Technician (CRAT) Practice Exam

Question: 1 / 400

What is the primary purpose of using an electrocardiogram (ECG)?

To measure oxygen levels in the blood

To assess the heart's electrical activity

The primary purpose of using an electrocardiogram (ECG) is to assess the heart's electrical activity. An ECG records the electrical signals in the heart over a period of time, allowing healthcare professionals to identify any abnormalities in heart rhythm, the size and position of heart chambers, and the overall functioning of the heart's electrical system. This information is crucial for diagnosing various heart conditions, such as arrhythmias, myocardial infarctions, and other cardiac pathologies. By interpreting these electrical signals, clinicians can make informed decisions about treatment and further diagnostic testing, making the ECG a vital tool for cardiac evaluation.

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To evaluate lung function

To determine blood pressure

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